Abstract
This paper presents a prototype of a system that supports the setting of appropriate mouse sensitivity for beginner players of First Person Shooting (FPS) games. A Mouse sensitivity is a value that is set in the game. The higher the value, the distance of the player character's viewpoint moves more when the player moves the mouse. This paper constructs a mouse sensitivity setting support system for beginner players by determining the discrepancy between the mouse sensitivity normally set by beginner players who have trouble setting mouse sensitivity and an appropriate mouse sensitivity.